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SoftAP - Share an aircard / wifi connection

Hello everyone... First post...

I'm looking for some help with setting up a softap using airbase and ip masquerading. I'm not trying to set up an 'evil ap' just something that can actually be used as an access point for sharing an aircard connection with multiple laptops in my vacinity. I think I'm having a hard time getting the ip address masquerading, and the internet connection sharing between the tap at0 and rndis0. Not sure where I'm going wrong. I have googled a ton but can't find anything that can bridge the gap of my limited knowledge.

Hardware: Atheros ath9k on wlan0 (can't recall exact model at the moment, but works with the aircrack-ng suite on everything)
Aircard is on rndis0 --> I have installed usb-rndis-lite and can get the rndis0 interface up using the command 'ifup rndis0' this is the connection I'm trying to get my soft ap from airbase-ng to use

Then i tried some code I got off some other posts (this is where I think I'm off on the wrong path)Airbase-ng and bridging soft ap to ethernet This may not be related to the bt4 config and my wireless rndis0 config with my syntax?!?!

When I see what the associated client's IP is, it looks like it was assigned ip address 169.254.XX.XX. Not sure where it got that one from or if it's leftover from my home internet connection. Either way I'm at a loss on how to get the access point tap at0 to assign an ip address and then bridge the connection to rndis0. Any thoughts from the gurus would help. Thanks in advance for any spooning/schooling that you are willing to give.